Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Calculeu [fraction numerator cos open parentheses a minus b close parentheses minus cos open parentheses a plus b close parentheses over denominator sin open parentheses a plus b close parentheses plus sin open parentheses a minus b close parentheses end fraction equals tan left parenthesis square right parenthesis], on [square equals]_____
Right answer summary: part 1: b
Question state: todo